You can change the layout of the upload widget by using css. There are lots of examples on the Internet for this.

To restrict the file size there are two options.

1. After upload and before saving to the database you can check the file size and throw an exception. This is the basic Outsystems solution.

2. Use JavaScript to check the file size before uploading. You do need a browser that supports this JavaScript, because you are checking the local filesystem of the client.

One last note regarding the forum: if your question is answered, mark the thread as answered and post a new question to start a new thread. This will keep the forum clean and other developers looking for the same question have more luck in finding their answer.